Full exhausts to open headers gain

Not overthinking it as its prob not going to happen anyway, just a topic of conversation, I personally would like to see the car get as close to a street driven 9 sec car as poss with the current combo, that would go someway towards "my" personal goal for the car, but not necessarily the owners unfortunately, its "Free" 10ths for no money as opposed to a $1000 for a carb that may only gain a 10th so why not try it, to me a race car is not that unless it sounds like one and it would help our brkt racing in my opinion if we were more on a par with the other cars that go rounds that run in the 10.0's high 9's.